package com.itheima.bigevent.utils;

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.PutObjectRequest;
import com.aliyun.oss.model.PutObjectResult;
import org.springframework.beans.factory.annotation.Value;

import java.io.InputStream;

public class AliyunOssUtil {
    /**
     * 地域节点
     */
    private static final String ENDPOINT = "https://oss-cn-chengdu.aliyuncs.com";
    /**
     * AccessKey ID
     */
    private static final String ACCESS_KEY_ID = "YourAccessKeyId";
    /**
     * AccessKey Secret
     */
    private static final String ACCESS_KEY_SECRET = "YourAccessKeySecret";
    /**
     * OSS存储空间名称
     */
    private static final String BUCKET_NAME = "examplebucket";

    /**
     * 上传文件到阿里云OSS
     *
     * @param objectName  资源保存在OSS中的名称
     * @param inputStream 资源的输入流
     * @return 资源的访问地址
     */
    public static String uploadFile(String objectName, InputStream inputStream) throws Exception {
        // 创建OSSClient实例
        OSS ossClient = new OSSClientBuilder().build(ENDPOINT, ACCESS_KEY_ID, ACCESS_KEY_SECRET);

        String url = "";
        try {
            // 创建PutObjectRequest对象
            PutObjectRequest putObjectRequest = new PutObjectRequest(BUCKET_NAME, objectName, inputStream);
            // 上传文件
            PutObjectResult putObjectResult = ossClient.putObject(putObjectRequest);
            // 拼装资源访问的url，url组成格式为：https://bucket名称.区域节点/资源名称
            url = "https://" + BUCKET_NAME + "." + ENDPOINT.substring(ENDPOINT.lastIndexOf("/") + 1) + "/" + objectName;

        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
            throw oe;
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
            throw ce;
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }

        return url;
    }
}
